🚀 go-pugleaf

In article <1d72niINNl0r@fido.asd.sgi.com> gary@sgi.com writes:
>In article <1992Nov3.200044.3833@csx.cciw.ca>, hcp@csx.cciw.ca (H.C. Pulley) writes:
>|> In article <1cphg1INN73e@fido.asd.sgi.com> gary@sgi.com writes:
>|> >In article <1992Oct29.151010.7244@Princeton.EDU>, bdavis@phoenix.Princeton.EDU (William Davis) writes:
>|> >|> I have a file with data points scattered in 3-D space (ground water
>|> >|> polution values from wells).
>|> >|> 
>|> >|> For example:
>|> [example deleted]
>|> 
>|> I am also trying to get an isosurface of points scattered in 3-space.  Mine is
>|> data from a body of water.
>|> 
>|> >Try ReadXYZData -> Triangulate3D -> IsosurfacePyr -> Render
>|> >
>|> >Triangulate3D is on the ftp site and will generate a pyramid of tetras 
>|> >using a 3D voronoi method. 
>|> 
>|> I have tried using Triangulate3D but it always exits and prints:
>|> Triangulate3D: connect_tetra failed!
>|> 
>|> What data would cause it to print this message?  Has anyone else encountered
>|> this problem?
>|> 
>
>The Known Problems says :
>     KNOWN PROBLEMS
>          The program  may  fail  if  four  sites  in  the  input  are
>          coplanar, or if five sites are on a common sphere.
>
>Did you try selecting the Jitter option to jitter the points to avoid the 
>coplanar issues? It may or may not help. 

Without the Jitter option, I get a popup window which tells me that the data is
coplanar.  OK, I thought, I'll just set the jitter option.  That's when I get
the message about connecting tetras.  This message is not displayed in a popup
window; it is displayed on stdout (the terminal from which Explorer was 
launched).

Harry
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